The 4th Amendment of the U.S. Constitution prohibits unreasonable search-and-seizure. But it doesn't apply to our nation's borders. The federal government has long been able to search people entering and exiting the country without a reason. It's known as the border search exception to the 4th Amendment.

Now, your electronic devices are also fair game.

It's an area of concern for Kevin Johnson, Dean of the UC Davis School of Law.

"I think we have a 4th Amendment that regulates government conduct and the idea that it doesn't apply in certain places doesn't make a lot of sense to me," Johnson said.

The ACLU calls it's the "Constitution Free Zone." It stretches 100 miles inland from the United States border, that includes Sacramento and Stockton.

Since 2008, the Department of Homeland Security has been allowed to seize and review the contents of personal electronic devices all in the name of national security.

The agencies that monitor the border, including Customs and Border Protection can do this without probable cause. Homeland Security's Office for Civil Rights and Civil Liberties just reviewed the practice, and reaffirmed it.